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package stfe
import (
"github.com/google/trillian/monitoring"
"github.com/google/trillian/monitoring/prometheus"
)
var (
reqcnt monitoring.Counter // number of incoming http requests
rspcnt monitoring.Counter // number of valid http responses
latency monitoring.Histogram // request-response latency
lastSdiTimestamp monitoring.Gauge // unix timestamp from the most recent sdi
lastSthTimestamp monitoring.Gauge // unix timestamp from the most recent sth
lastSthSize monitoring.Gauge // tree size of most recent sth
)
func init() {
mf := prometheus.MetricFactory{}
reqcnt = mf.NewCounter("http_req", "number of http requests", "logid", "endpoint")
rspcnt = mf.NewCounter("http_rsp", "number of http requests", "logid", "endpoint", "status")
latency = mf.NewHistogram("http_latency", "http request-response latency", "logid", "endpoint", "status")
lastSthTimestamp = mf.NewGauge("last_sth_timestamp", "unix timestamp while handling the most recent sth", "logid")
lastSdiTimestamp = mf.NewGauge("last_sdi_timestamp", "unix timestamp while handling the most recent sdi", "logid")
lastSthSize = mf.NewGauge("last_sth_size", "most recent sth tree size", "logid")
}
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